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In the circuit shown, L = 1 μ H, C = 1 μ F and R = 1 k Ω .. They are connected in series with an a.c. source V = V 0 sin ω t as shown. Which of the following options is/are correct? ∼ V 0 sin ω t L = 1 μ H C = 1 μ F R = 1 k Ω

1. At ω∼ 0 the current flowing through the circuit becomes nearly zero
2. The current will be in phase with the voltage if ω = 10 4 rad. s –1
3. At ω >> 10 6 rad. s –1 , the circuit behaves like a capacitor
4. The frequency at which the current will be in phase with the voltage is independent of R

Correct answer: At ω∼ 0 the current flowing through the circuit becomes nearly zero

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